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contributor authorSmith, David C.
date accessioned2017-06-09T14:47:59Z
date available2017-06-09T14:47:59Z
date copyright1986/07/01
date issued1986
identifier issn0022-3670
identifier otherams-27038.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4163999
description abstractAnticyclones originating from the Loop Current are known to propagate into the western Gulf of Mexico. Their frequency of generation, their long lifetimes, and satellite data suggest that at any one time one or more eddies may occupy the Gulf. Given the eddy sizes (100?200 km) and geometric confinement of the Gulf, it would appear that there may be significant interactions of individual eddies and/or interactions of the eddies with bottom topography. These possibilities are explored through the use of a two-layer primitive equation model. Variable parameters in this model study are eddy strength, vertical structure, lateral friction, and initial location relative to topography. Results indicate that eddy motion is governed by two dynamical regimes depending on its lower layer rotational strength. Anticyclones with significant lower layer anticyclonic structure develop offshore directed self advective tendencies associated with topographic dispersion which induces asymmetry in the eddy. Eddies with weaker lower layer flow rapidly evolve through topographic dispersion to upper layer features and propagate independently of topography, interacting with the coastal boundary. The boundary can also include eddy asymmetry with resulting alongshore self advection tendencies leading to northward motion for anticyclones along the western boundary.
publisherAmerican Meteorological Society
titleA Numerical Study of Loop Current Eddy Interaction with Topography in the Western Gulf of Mexico
typeJournal Paper
journal volume16
journal issue7
journal titleJournal of Physical Oceanography
identifier doi10.1175/1520-0485(1986)016<1260:ANSOLC>2.0.CO;2
journal fristpage1260
journal lastpage1272
treeJournal of Physical Oceanography:;1986:;Volume( 016 ):;issue: 007
contenttypeFulltext


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